53943874920 has 192 divisors, whose sum is σ = 190008720720. Its totient is φ = 13193736192.

The previous prime is 53943874903. The next prime is 53943874927. The reversal of 53943874920 is 2947834935.

53943874920 is a `hidden beast` number, since 5 + 39 + 43 + 87 + 492 + 0 = 666.

53943874920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 16108178724 + 37835696196 = 126918^2 + 194514^2 .

It is not an unprimeable number, because it can be changed into a prime (53943874927) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 698052 + ... + 771468.

Almost surely, 2^53943874920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53943874920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95004360360).

53943874920 is an abundant number, since it is smaller than the sum of its proper divisors (136064845800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53943874920 is a wasteful number, since it uses less digits than its factorization.

53943874920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73604 (or 73597 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 53943874920 in words is "fifty-three billion, nine hundred forty-three million, eight hundred seventy-four thousand, nine hundred twenty".